Temperature-regulating appliance.



No. 732,775. PAENTED'JULYV, 1903.

N. E. NASHQ- I 'I'EMPERA'IUREV REGULATING APPLIANCE'. 4 APPLICATION FILED JULY 2o. 1901.

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'Wnesses No. 732,775. 7 PATENTE-11711117 7', 1993.-' N. E. NASH. f

TEMPERATURE REGULATING APPLIANGE. APPLICATION FILED JULY zo. 1901.

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UNITED STATES Patented july 7, 1903. v

PATENT OFFICE.

NATHAN E. NASH, OF TORONTO, CANADA, ASSIGNOR OF ONE-HALF TO WILLIAM S. SHAW, OF BOYNEOITY, MICHIGAN.

TEMPElRATURE-REGULATING APPLIANCE.

SPECIFICATION forming part of Letters Patent N o. 732,77 5, dated July 7, 1903.

Application filed July 20, 1901..

To @ZZ whom t may concern:

Be it known that I, NATHAN E. NASH, of the city of Toronto, in the county of York and Province of Ontario, Canada, have invented certain new and usefullmprovements in Regulating-Valves; andlhereby declare that the following is a full, clear, and exact descrip-v tion of the same.

This invention relates to certain new and useful improvementsin that class of regulating appliances employing a thermostatieallyoperated valve to control the flow of a pressure iiuid to a pressure-operatedvalve; and the object of the invention is to provide the regulating-valve with a motor-valve actuated by the accumulation of the operating. fluid under thermostatic influence; and the invention consists, essentially, of the device hereinafter more -fully set forth, and more particularly pointed out in the claims.

In the drawings, Figure l is a side elevation showing the regulating-valve used in connection with a radiator. Fig. 2 is a perspective view, partly in section, of the regulating valve. Fig. 3 is a sectional view through the same on the lines a a of Fig. 2. Fig. 4 is a longitudinal sectional view on the lines b b of Fig. 3. Fig. 5 is a sectional view of the throttle-Valve. y K

Like letters of reference refer to like parts throughout the specification and drawings.

a represents the casing of the regulating- Valve, in one end of which is formed an accumulating-chamber h. Intergrally formed with the bottom of the chamber b is a centrally-located annular flange c, and formed through the body of the casing o, is a longitudinal bore cl, in which is contained a longitudinally movable valve stem e. The valve-stem e extends into the chamber l), and fitted to the valve-stem c within the accumulating-chamber Z) is a motor-valve f. The flange c is opposed to the motor-valve f and forms a seat for it when the motor-valve is actuated to cut off the flow of the pressure fluid.

vContained in thevaccumulating-chamber b is a hollow plug g. The valve-stem is provided with two washers 7i and h', bearing,- respectively, against the inner and outer lsides of the motor-valve f, and contained within the hollow plug g is a coiled spring t', which bears Serial No. 69,149. (No modeLl y against the inner face of the plug g and against the washer 7L'. Formed on the internal face of the accumulating-chamber b is a shoulder j, slightly above the top of the flange c, and mounted upon the shoulderjis the edge j" of the motor-valvef. The inner end of the plug g normally engages the edge f of the motor-valvefand holds it securely between itself and the shoulderj. Surrounding. theliange c is an annular chamber k, conneoted with the outlet-port Zby means of the outlet-channel m. Entering the casing ct is an inlet-port 0, and connecting the inlet-port o with the bore c' of the -flange c is the inletchannel -p. When the motor-valve fis on 'the seat of the flange c, the flow ot' the pressure fluid from the inlet-port o through the inlet-channel p and bore c' to the annular chamber lc is cut oii", and when the mot-orvalve f is raised from its seat the pressure fluid passes from the bore c to the outletchannel m and outlet-port Z.V

Within the casing a is an exhaust-channel q, extending from the outlet channel 'm through the bore d to the exterior of the casing. Formed in the valve-stem e is an annular groove r, which normally registers with the exhaust-channel q when the motor-valve fis on its seat.

diminutive duct s, communicating with the bore c', and contained in the casing a at the end of theducts isa valve-chamber t. Working longitudinally in the valve-chamber tis a puppet-valve u, the outer end of which is connected to an arm o, pivoted to the outer face of the casing a. valve-chamber t is a duct w, which discharges into the accumulating-chamber b above the motor-Valve f. When the puppet-valve u is away from its seat, a small volume of the pressure fluid passes through the duct s to the valve-chamber t and through the duct w to the accumulating-chamber b, which acts as a reservoir for the accumulation of the pressure fluid against the motor-valve f. Connected with the duct fw is an outlet-duct ou, regulated by an adjustable screw y. The accumulation of the pressure fluid in the reservoir-chamber b must be in excess of the waste through the outlet-duct to allow of th operation of the motor-valve Formed in the casing o. is a' Connected with the IOC Connected to the outer face of the casing a is a thermostatic blade z, fitted with a setscrew a', the point of which is adapted to engage the pivoted arm o. The inlet-port o is connected with the pressure-fluid chest b', fitted with a throttle-valve CZ. The thermostatic blade ,e is arranged to contract by the decrease and expand by the increase in telnperature. The set-screw a is set to engage the pivoted arm t# at a predetermined degree of heat. The pressure fluid enters the controller through the inlet-port o and passes through the inlet-channel p to the bore c. W'hen the temperature of the room is at or below the predetermined degree of heat, the set-screw a is free from contact with the pivoted arm o. The pressure fluid in the bore c then passes into the duct s and forces the puppet-valve fu, away from its seat to permit of the discharge of. the pressure fluid into the valve-chamber The pressure fluid passes from the valve-chamber t through the duct w to the accumulatlng-chamber b, and its accumulation in the accumulatingchamber holds the motor-valve on its seat to close the passage from the bore c to the annular chamber 1. Vhen the motor-valvefis on its seat, the annular groove r is in alinement with the duct q and establishes a passage or duct from the outlet-channel m to the exterior of the casing to relieve the pressure in the outletchannel m. Vhen the temperature has risen above the predetermined degree, the thermostatic blade ,s expands and causes the setscrew a to engage the pivoted arm o to move the puppet-valve to cut oil the communication between the ducts s and w and prevent the pressure fluid passing to the accumulating chamber Z). The waste of the pressure fluid through the waste-outlet being continuous, the pressure of the fluid in the reservoir-chamber b on the motor-valve fis relieved immediately the puppet-valve cuts off the flow of the pressure fluid through the diminutive ducts, and when relieved the force of the pressure fluid against the under side of the motor-Valve fraises it from its seat and establishes a communication between the bore c and annular chamber k, from which it passes through the outlet-channel m to the outlet-port Z. When the temperature has fallen below the set degree, the thermostatic blade .e contracts, relieving the pivoted arm u of the pressure of the set-screw and allows the pressure iiuid in the diminutive duct s to force the puppet- Valve from its seat and open the communication from the bore c to the accumulatingchamber b through the valve-chamber t and duct tu. The accumulation of the pressure fluid in the accumulating-chamber b replaces the motor-valve f on its seat and cuts off the communication between the bore c' and annular chamber 7c, the replacement of the motor-valve being accelerated by the spring fr', this action being repeated automatically by the variation of the temperature of the room from y the degree at which the apparatus has been set to operate. Connected with the outlet-port Z is a pipe e, leading to the diaphragm g ot the plunger-valve 7o' of the radiator W, and connected to the outlet-port o is a pipe lm', leading to the reservoir o' of the pressure fluid. The pressure Huid is adapted to normally flow from the reservoir 0 through the pipe m' to the regulating-valve and through the regulating-valve to the pipe c to actuate the plunger-valve 7c to cut off the ilow of the heating agent to the radiator. When the flow of the pressure fluid through the pipe e has been cut o by the action of the motor-valve f, the pressure of the fluid on the diaphragm g' of the plunger-valve 7o is relieved by the escape of the pressure fluid from the outlet-channel m through the duct q, which in its escape passes around the annular groove r in the valve-stem.

It will be understood that I may vary the details of the construction of the apparatus without departing from the nature of the invention, and one variation which I might specify being the omission of the pivoted. arm o, the plunger-valve u in this case being actuated directly by the thermostatic blade, and that I may use the regulatingvalve in connection with any pressure-operated valve.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. A regulating-valve, comprising a valvecasing having an accumulating chamber formed therein, and intercom municating inlet and outlet channels formed therethrough, a motor-valve to control the communication between the inlet and outlet channels actuated by the pressure of the fluid in the accumulating-chamber, said casing also having a duct leading from the inlet-channel to the accumulating-chamber and an outlet for the accumulatingchamber, a puppet valve to control the passage through the duct and a thermostatically-actuated means for actuating the puppet-valve, substantially as specified.

2. Aregulating-valve, comprsinga valvecasing having an accumulating chamber formed therein and having intercommnnicating inlet and outlet channels formed therethrough, a motor-valve to control the communication between the inlet and outlet channels actuated by the pressure of the fluid in the accumulating-chamber, said casing also having a duct leading from the inlet-channel to the accumulating-chamber and an outlet for the accumulating-chamber, a puppet-valve to control the passage through the duct, an arm pivoted to the exterior-of the casing to actuate the puppet-valve and a thermostatic blade arranged to actuate the pivoted arm, substantially as specified.

3. A regulating-valve, comprisinga Valvecasing having an accumulating chamber formed therein and having intercommunicat- IOO lIO

IIS

ing inlet and outlet channels formed therethrough, a motor-Valve to control the comin unication between the inlet and outlet chanto the accumulating-chamber and an outlet for the accumulating-chamber,apuppet-valve to control the passage through the duct and a thermostatic blade to actuate the puppetvalve, substantially as specified.

4. A regulating-valve comprising a valvecasing having an accumulating chamber formed therein and having intercommunicating inlet and outlet channels formed therethrough, a motor-valve to control the communication between the inlet and outlet channels actuated by the pressure of the fluid in the accumulating-chamber, said casing also having a duct leading from the inlet-channel to the accumulating-chamber and an outlet for the accumulating chamber, a puppetvalve to control the passage through the duct, a thermostatic blade to actuate the puppetvalve, and adjustable means carried by the thermostatic blade to operate the puppetvalve at different degrees ot heat, substantially as specified.

5. A regulating-valve, comprising a valvecasing having an accumulating chamber formed therein and having intercommunicating inlet and outlet channels formed therethrough, a motor-valve to control the communication between the inlet and outlet channels actuated by the pressure of the iiuid in the accumulating-chamber, said casing also having a duct leading from the inlet-channel to the accumulating-chamber and an outlet for the accumulating chamber, a puppetvalve to control the passage through the duct, an arm pivoted to the exterior of the casing to actuate the puppet-valve, a thermostatic blade arranged to actuate the pivoted arm, and means for adjusting the thermostatic blade to operate the puppet-valve at difterent degrees of heat, substantially set forth.

G. A regulating-valve, comprising a valvecasing having an accumulating-chamber formed therein andhaving intercommunicating inlet and outlet channels formed therethrough, a motor-valve' to control the communication between the inlet and outlet channels actuated by the pressure of the fluid-iu the accumulating-chamber, a spring in the accumulating-chamber bearing against the motor-valve to accelerate the closing thereof, said casing also having a duct leading from the inlet-channel to the accumulating-chamber and an outlet for the accumulating-chamber, a puppet-valve to control the passage through the duct, an arm pivoted to the exterior of the easing to actuate the puppetvalve, and a thermostatic blade to actuate the pivoted arm, substantially as specified.

7. A regulating-valve, comprising a valvecasing having an accumulating chamber formed therein and having intercommunicating inlet and outlet channels formed therethrough, a motor-valve to control the communication between the inlet and outlet channels actuated bythe pressure of the iiuid in` theV accumulating-chamber, a spring in the accumulating-chamber bearing against the valve to accelerate the closing'pressure thereof, said casing also having a duct leading from the inlet-channel to the accumulatingchamber and an outlet for the accumulatingchamber, a puppet-valve to control the passage through the duct, and a thermostatic blade to actuate the puppet-valve, substantially as specified. l

S. A regulating-valve, comprising a valve- .casing having intercommunicating inlet and outlet channels formed therethrough, a motor-valve to control the communication between the inlet and outlet channels, a spring bearing against the motor-valve to accelerate e the closing thereof, said casing also having a duct leading from the inlet-channel to the motor-valve and an outlet for the same, a puppet-valve to control the passage through the duct, a thermostatic blade to actuate the puppet-valve and means for adjusting the thermostatic blade to operate the puppetvalve at dierent degrees of heat, substantially as specified.

9. A regulating-valve, comprising a valvecasing having an accumulating chamber formed therein and having intercommunicating inlet and outlet channels formed therethrough, a motor-valve to control the communication between the inlet and outlet channels actuated by the pressure of the iiuid in the accumulating-chamber, a spring in the accumulating-chamber bearing against the` motor-valve to accelerate the closing thereof, said casing also having a duct leading from the 'inlet-channel to the accumulating-chamber and an outlet for the accumulating-cham-M IOO IOS

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